Molding-graining machine.



I'PATENTED JUNE 16, 1993-. B. w. AUGUSTINE. momgme GRAINING MACHINE.

APPLICATION FILED JUNE 3. 1901.

N0 MODEL.

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No. 731,011; 'Patented June 16, 1903.

'UNITED STATES PATENT OFFICE.

BERNARD W. AUGUSTINE, OF ALAMEDA, CALIFORNIA.

MOLDING-GRAIN'ING MACHINE.

SPECIFICATION forming part of Letters Patent No. 731,011, dated June 16,1903. Application filed June 3, 1 901 Serial No. 63,032. No model.)

To all whom it may concern: frame and swiveled in the boxes B This Be itknown that I, BERNARD TV. AUGUS- "admits of adjustment between therollers A TINE, a citizen of the United States, residing and B. Theidlers A A are linked together, 55 at 1000 Pacific avenue, Alameda, inthe county supported by the arms A B extending from 5 of Alameda andState of California, have inthe shafts A B, respectively. Thisarrangevented certain new and useful Improvements ment of the idlersinsures engagement at all in Molding- Graining Machines; and I do timesbetween A and B in the relative adhereby declare the following to be afull,clear, j ustment of A and B. y 60 and exact description of saidinvention, such The arms A B, idlers A B linked to pinas will enableothers skilled in the art -to ions A B transmit rotation from A and Bwhich it most nearly appertains to make, use, respectively, to therotary brushes A B and practice the same. which are slidably mounted inthe frame X This invention relates to improvements in and adjustable bythe screws A and B with 65 wood-graining machines, and particularlyrelation to the pressure upon the surface of to molding-grainingmachines, Attention their respective rollers. The brushes A B isdirected to application filed July 6, 1900, are submerged into theliquids contained in Serial No. 22,749, allowed December27, 1900, thepans A 13. The scrapers A B1 are of which this present application is amodifimounted in the frame X in contact with the 70 cation. surface oftheir respective rollers, the former The object which the presentinvention has having the extension A fixed upon its shaft in view is toreproduce accuratelya grain and tied by a spring to the frame X in suchtaken. from the surface of one board and ima manner that the scraper isnormally mainprint it upon another board, such as beading tained out ofcontact with the roller A, the 75 or molding having convoluted surfaces.pressure being regulated through the rods A Vith this object in view theinvention 0011- upon both sides of the machine, extending sists in thenovel arrangement and combinaloosely into the handles A threaded intothe tion of parts, which will be more fully deflange of the frame X.scribed in the following specification and The shafts A B are coupled tothe rollers 80 pointed out inthe appended claims. A and B at A and B insuch a manner that In the drawings, Figure 1 is a side elevathe rollersmay be removed and replaced withtion of a molding-graining machineconstructout disturbing the adjustment of the runninged in accordancewith this invention. Fig. gear. This maybe accomplished by forming 2 isa plan view of the same in cross-section, on one end of the rolleratrunnion to enter the 85 taken on the line 00 00, Fig. 1. Fig. 3 is afragj'ournalbox thereat and on the opposite side of mentary diagrammaticview in cross-section, the roller a clamp-socket to receive the endshowing the molding embedded in the printof the driving-shaft. Byremoving the top ing-roller. of the trunnion-box and releasing theclamp- In the description with reference to the socket the roller may beremoved,leaving the 90 drawings distinguishing letters of referencedriving-shaft undisturbed in its journal-box.

40 will be assigned to the various groups of mech- The peripheralsurface of the rollerAis proanisms, the subsidiary parts of such groupsvided with annular grooves A over which the being distinguished by theaddition of a 1111- elastic sensitive composition A is stretched. meralto the common letter. The grooves A approximatethe cross-section 95 Theconstruction consists of the printingof the molding to be treated. Theroller A roller A, mounted upon the driving-shaft A, is made up in theshape of a hollow drum, as journaled in the frame X. The rotation ofshown, set into a cylindrical mold and the the driving-shaft istransmitted through the composition A cast thereon. To prevent the largegear-wheel A through the idlers A composition A filling the grooves A asit is 100 A, to the gear-wheel B fixed upon the shaft poured into themold, a thin sheet of rubber B of the form-roller B. The shaft B is jour- A is stretched over the drum before pouring naled in the boxes Badjustable laterally in the composition, which adheres to the rubber.the frame X by the screw B, threaded in the The composition A is verytough and resiliout, resembling the hectograph composition in itsaffinity for the printing compound.

The peripheral surface of the roller B consists of a heavy veneer B ofthe wood to be imitated, joined in such a manner that the joint does notappear in the impression trans ferred to the printing-roller. This iseasily accomplished by a lapping of irregular outline.

The roller C, adjustably mounted in the frame X, regulates the pressurebetween the molding being treated and the roller A.

The feed-table consists of the platform D, hinged at D between the twosides of the frame X, between which it extends. The springs D rest uponlugs on the in side of the frame X to hold the molding E resting thereonat an angle out'of contact with the surface of the roller A until forcedunder the roller G. This construction is necesary to prevent the end ofthe molding coming into contact with the roller A be fore it can carrythe molding entirely through. -Should the molding E be forced against A,it would injure the composition A or blur the transfer impressionthereon.

In operation the pan B is partially filled with a wood filler of thedesired color, which is transferred by the brush B to the surface of theroller B, the superfluous adherence being removed by the scraper Bleaving the capillary interstices of the grain of B filled.

The roller B is adjusted to light contact with A, which picks the fillerfrom B to its own surface, producing a negative outline of the grain ofB. This in turn is printed upon the surface of the molding as samepasses through the machine. The molding squeezing the composition downinto the groove A compels it to conform to the convolutions of themolding, in this manner printing upon the whole surface of the molding.The pan A is filled with benzene or a suitable solvent, which cleans thesurface of the composition A by means of the brush A and scraper Aleaving the surface clean for a new negative from the grain B If thescraper A is permitted to rest against the composition when the machineis out of operation, it sets and leaves a mark upon the surface of thecomposition, hence the spring adjustment for readily relieving thescraper when not operating. For the same reason the roller B and brushA" are backed out of contact with the composition when the machine isout of operation.

It is essential to have a positive gearing such as shown between therollers A and B.

Any play or drag in their contact would blur the negative transfer tothe composition A.

Having thus described this invention, what is claimed is 1. In a machineof the class described, the combination with a printing-roller havingcircumferential depressions in its surface, of a resilient surface oversaid depressions adapted to be pressed 'into the depressions.

2. In a machine of the class described, the combination with aprinting-roller, of a sprin gpressed platform for holding the work to betreated by the roller, and means for holding the Work on the platformagainst the printingroller.

3. In a machine of the class described, the combination with aform-roller, of a printingroller having depressions constituting apattern, a resilient printing-surface over said depressions and carriedby the printing-roller, means for holding the printing and form rollersin adjustable contact with each other, and means for holding the work incontact with the printing-roller.

4. In a machine of the nature indicated, a printing-roller having aresilient surface,with annular grooves under said resilient surface;substantially as described.

5. In a machine of the class described, the combination of aform-roller,a printing-roller, means for rotating said rollers in unisonindependent of contact with each other, a feedroller adapted to hold thework in contact with said printing-roller, and means whereby saidfeed-roller is adjusted.

6. In a machine of the class described, the combination with aprinting-roller, a formroller, of means for holding the work out ofcontact with the printing-roller, and means whereby said work is held incontact with said roller.

7. In a machine of the class described, the combination with aprinting-roller, a formroller, a spring adapted to hold the work out ofcontact with the printing-roller, and an adjustable roller for holdingthe work in contact with the printing-roller.

8. In a machine of the class described, the combination with aprinting-roller having a hard body, circumferential depressions in theperiphery of said body, of a resilient or flexible surface over saidbody adapted to enter said depressions, and means for forcing saidresilient material and work into said depressions.

9. In a machine of the class described, the combination with aprinting-roller, a formroller, means for adjusting said form-roller, ofrotary brushes engaging said rollers, and means controlled bytheadjusting means of said form-roller, whereby the brushes are held inthe same relation to the rollers at all times.

10. In a machine of the-class described, the combination with. aprinting-roller having suitably-formed depressions existing in itssurface, of a resilient surface over said depressions adapted to bepressed into said depressions.

In testimony whereof I have hereunto set my hand this 27th day of May,190].

BERNARD XV. AUGUSTINE.

Witnesses z BALDWIN VALE, GEORGE F. HATTON.

